Advertisements
Advertisements
प्रश्न
Distinguish between uniformly and non-uniformly accelerated motions.
Advertisements
उत्तर
A uniformly accelerated motion is one in which speed is constantly increasing or decreasing with time while a non uniform motion is one in which speed is not constantly changing with time.
APPEARS IN
संबंधित प्रश्न
A ball is rolling from A to D on a flat and smooth surface. Its speed is 2 cm/s. On reaching B, it was pushed continuously up to C. On reaching D from C, its speed had become 4 cm/s. It took 2 seconds for it to go from B to C. What is the acceleration of the ball as it goes from B to C?

A motorbike, initially at rest, picks up a velocity of 72 kmh−1 over a distance of 40 m. Calculate
- acceleration
- time in which it picks up above velocity.
A truck running at 90 kmh−1, is brought to rest over a distance of 25 m. Calculate the retardation and time for which brakes are applied.
A cyclist driving at 36 kmh−1 stops his motion in 2 s, by the application of brakes. Calculate
- retardation
- distance covered during the application of brakes.
What is the SI unit of acceleration?
The acceleration of a moving body is constant in magnitude and direction. Must the path of the body be a straight line?
If not, given an example.
Out of energy and acceleration, which one is a vector?
The graph shows how the velocity of a scooter varies with time in 50 s.
Work out: Acceleration.
If a body starts from rest, what can be said about the acceleration of the body?
Acceleration is a scalar.
